The AI Toolchain — issue -085, May 26, 2026

Phoenix AI assistant now accessible over modal overlays in the UI.

$ git clone --branch arize-phoenix-v16.2.0 https://github.com/Arize-ai/phoenix.git
# already have the repo? check out this version:
$ git checkout arize-phoenix-v16.2.0

• ›The agents assistant is now accessible while modal overlays are open, removing the need to dismiss modals to interact with it.

$ git clone --branch arize-phoenix-v16.1.0 https://github.com/Arize-ai/phoenix.git
# already have the repo? check out this version:
$ git checkout arize-phoenix-v16.1.0

Glamourous agentic coding for all

Crush v0.73.0 adds a dedicated AWS Bedrock Europe (eu-west-1) provider for EU-based users.

$ git clone --branch v0.73.0 https://github.com/charmbracelet/crush.git
# already have the repo? check out this version:
$ git checkout v0.73.0

• ›Adds a 'Bedrock Europe' provider that routes all requests to eu-west-1, alongside the existing 'Bedrock US' (us-east-1) provider.

Lightweight coding agent that runs in your terminal

Codex CLI gains conversation history search, concurrent read-only MCP tools, OAuth for MCP servers, and richer extension/hook context.

$ git clone --branch rust-v0.134.0 https://github.com/openai/codex.git
# already have the repo? check out this version:
$ git checkout rust-v0.134.0

$ codex --profile my-restricted-profile sandbox <target>

$ codex mcp add --oauth https://example.com/mcp

• ›Adds search across local conversation history with case-insensitive content matching and result previews.
• ›Makes --profile the primary profile selector across CLI, TUI permissions, and sandbox flows; legacy profile configs now rejected with migration guidance.
• ›Supports per-server environment targeting and OAuth options for streamable HTTP MCP servers via codex mcp add.
• ›Enables concurrent execution of read-only MCP tools that advertise readOnlyHint.
• ›Preserves local $ref/$defs structures and compacts oversized schemas for more reliable connector tool schemas.

LangChain 1.3.2 adds in-flight PII redaction and stream transformer registration on middleware.

$ git clone --branch langchain==1.3.2 https://github.com/langchain-ai/langchain.git
# already have the repo? check out this version:
$ git checkout langchain==1.3.2

• ›Adds in-flight PII redaction for streamed data via PIIMiddleware, enabling real-time scrubbing of personally identifiable information before it leaves the pipeline.
• ›Enables registration of stream transformers on middleware, allowing custom transformation logic to be applied to streamed outputs.

OpenAI Agents SDK v0.17.4 adds support for Realtime custom voice objects.

$ git clone --branch v0.17.4 https://github.com/openai/openai-agents-python.git
# already have the repo? check out this version:
$ git checkout v0.17.4

• ›Supports custom voice objects in the Realtime API integration.

Milvus Go SDK v2.6.5 adds nullable vector columns for all vector types and Array field partial update helpers for upsert requests.

$ git clone --branch client/v2.6.5 https://github.com/milvus-io/milvus.git
# already have the repo? check out this version:
$ git checkout client/v2.6.5

col := NewNullableColumnFloatVector("embedding", dim, compactVectors, validData)
_, err := client.Insert(ctx, milvusclient.NewColumnBasedInsertOption(collectionName).WithColumns(col))

• ›Adds nullable column constructors NewNullableColumnFloatVector, NewNullableColumnBinaryVector, NewNullableColumnFloat16Vector, NewNullableColumnBFloat16Vector, NewNullableColumnInt8Vector, and NewNullableColumnSparseFloatVector for dense, binary, float16, bfloat16, int8, and sparse vector types; each accepts compact non-null vector values plus a validData mask and validates that values length matches the valid row count.
• ›Extends FieldDataColumn to decode nullable vector field data using ValidData for FloatVector, BinaryVector, Float16Vector, BFloat16Vector, SparseFloatVector, and Int8Vector, preserving null rows while expanding compact wire-format payloads back to row-aligned columns.
• ›Adds upsert helpers WithArrayAppend(fieldName), WithArrayRemove(fieldName), and WithFieldPartialOp(fieldName, op) for Array field partial updates; non-REPLACE ops are serialized into UpsertRequest.FieldOps and automatically enable partial_update for both column-based and row-based upserts.
• ›Validates that vector fields passed to AddCollectionField are marked nullable=true before sending the RPC, rejecting invalid schema changes at the client.

Weaviate v1.37.5 adds a DigitalOcean text embedding module, named vector support in the default vector index, and vector index compression allow-lists.

$ git clone --branch v1.37.5 https://github.com/weaviate/weaviate.git
# already have the repo? check out this version:
$ git checkout v1.37.5

• ›Adds text2vec-digitalocean module for generating text embeddings via DigitalOcean's embedding service.
• ›Supports named vectors in the default vector index, enabling multi-vector configurations without specifying a custom index per vector.
• ›Adds allow-lists for vector index compression, giving operators fine-grained control over which vectors are subject to compression.
• ›Adds validation for reserved property name suffixes in schema definitions, preventing naming conflicts at collection creation time.